11-Bedroom
For Sale
$1,699,000
20 Autumn St, Somerville, MA 02145
Somerville, MA
Property Size3,540 SF
Price / SF$479.94
Days on Market37
Property Features for 20 Autumn St
General Information
Property type
Residential Multi Family
Property subtype
Quadruplex
Bedrooms
11
Bathrooms
6
Full bathrooms
4
Half bathrooms
2
Rooms
Bedroom 9, Bedroom 3, Bedroom 10, Bedroom 2, Bedroom 6, Bedroom 5, Bedroom 11, Bedroom 7, Bedroom 8, Bedroom 4, Bedroom 1
Elementary school
Sps
Middle school
Sps
High school
Sps
Standard status
Active
Size
3,540 SF
Building Details
Year built
1890
Listing Agency:
Engel & Volkers Wellesley · Engel & Völkers
(781) 591-8333
Listed By:
Cindy Laughrea
Added: Jul 15
Changed: Aug 20
Last Checked: Aug 20 at 3:06PM
MLS# 73496489
Copyright © 2026 Engel & Völkers. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Investment Insights
Based on property information with market context.
This quadplex at 20 Autumn Street contains 3,540 square feet and was built in 1890. The property includes 11 listed bedrooms, providing a substantial residential configuration within a historic multifamily building. The existing improvements offer room for improvement while retaining a well-established residential layout.
The property is in East Somerville, with access to Sullivan Square and its Orange Line service, the Green Line Extension, and the Broadway/Cross Bus line. These transit connections link the property with Boston, Cambridge, and nearby universities. Local restaurants, cafes, and everyday conveniences are close by, while Assembly Row adds nearby retail and entertainment options.
The property is in East Somerville, with access to Sullivan Square and its Orange Line service, the Green Line Extension, and the Broadway/Cross Bus line. These transit connections link the property with Boston, Cambridge, and nearby universities. Local restaurants, cafes, and everyday conveniences are close by, while Assembly Row adds nearby retail and entertainment options.
Key Highlights
- Quadplex with 3,540 square feet
- 11 listed bedrooms across the property
- Built in 1890
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$74,908
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
4.41%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,498,160
$1.5M
Cap Rate 7%
$1,070,114
$1.1M
Cap Rate 9%
$832,311
$832.3K
Market Conditions
NOI Build-Up for 3,540 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$112.6K $31.80/SF
− Vacancy
−$5.6K −$1.57/SF
EGI
$107.0K $30.23/SF
− OpEx
−$32.1K −$9.07/SF
NOI
$74.9K $21.16/SF
Area
Middlesex County, MA
Vacancy
4.94%
Lease Rate
$31.80 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,498,160
Cap Rate 7%
$1,070,114
Cap Rate 9%
$832,311
Alternative Uses
Best Use
Multifamily LT 5
$1.07M
$936.4K – $1.25M
NOI $74,908 @ 7.0% cap · market cap 4.41%
Second Best
Apartment 5plus
$1.01M
$880.4K – $1.17M
NOI $70,434 @ 7.0% cap · market cap 4.15%
Theoretical Best
Office A
$2.10M
$1.83M – $2.44M
NOI $146,697 @ 7.0% cap · market cap 8.63%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
1,983
Businesses Nearby
Explore this area
Business Placement
Demographics for 02145, MA
27,520
Population
12,669
Households
2.2
Avg Household Size
33
Median Age
55%
College-Educated
89%
High-School Grad
1.4 sq mi
ZIP Area
19,657
Density / Sq Mi
$119,167
Median Household Income
$63,629
Median Earnings
$2,377
Median Rent
$784,900
Median Home Value
Market
Vacancy Rate% for Multifamily in Northeast region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Quadplex - Historic multifamily property with convenient access to regional rail, bus service, dining, retail, and daily necessities.
Where is this quadplex located?
The property is located at 20 Autumn St Somerville, MA.
What is the asking price?
The asking price for this property is $1,699,000.
What are key features of this property?
This property features: Quadplex with 3,540 square feet; 11 listed bedrooms across the property; Built in 1890
